Berlin /ˈbɜːrlᵻn/ is a city along the Androscoggin River in Coös County in northern New Hampshire, United States. The population was 10,051 at the 2010 census. It includes the village of Cascade. Located on the edge of the White Mountains, the city's boundaries extend into the White Mountain National Forest. Berlin is home to the Berlin and Coös County Historical Society's Moffett House Museum & Genealogy Center, Service Credit Union Heritage Park, the Berlin Fish Hatchery, and the White Mountains Community College, member of the Community College System of New Hampshire.

Berlin is the principal city of the Berlin Micropolitan Statistical Area, which includes all of Coos County, New Hampshire and Essex County, Vermont. Because Quebec is less than 60 miles (100 km) away, Berlin has a large number of people of French Canadian descent in its population. Around 65% of its residents speak a variant of New England French, which is locally known as “Berlin French”.

Around 11,000 years ago, small groups of Native Americans camped around the area of what is now called Berlin. In later years, the Eastern Abenaki tribes came to Berlin to mine rhyolite on Mt. Jasper.

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